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District anti-electricity stealing system

A technology to prevent electricity theft and community. It is applied in the direction of measuring electric variables, measuring devices, instruments, etc. It can solve the problems of endangering the safety of the power grid, electrical equipment and personal safety hazards, and achieve the goal of reducing danger, avoiding electricity theft, and improving the action rate. Effect

Inactive Publication Date: 2016-02-10
CHENGDU 90 DEGREE IND PROD DESIGN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Now the phenomenon of stealing electricity has been repeatedly banned, which not only endangers the safety of the power grid, but also brings hidden dangers to electrical equipment and personal safety.

Method used

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  • District anti-electricity stealing system

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Effect test

specific Embodiment 1

[0040] Such as figure 1 As shown, the present invention discloses an anti-stealing electricity system for a community, including a step-down meter 2, a user cable 5, and a step-up meter 1; The output end of the step-down meter 2 is connected to the user cable 5; the input end of the step-down meter 2 is connected to the user cable 5, and the output end supplies power to the load 3; the step-down meter 2 includes a total meter and a step-down transformer in series, and the step-up meter 1 includes Submeter and step-up transformer; the input voltage of step-down meter 2 is lower than the working voltage of load 3, and the output voltage is the rated voltage of load 3.

[0041] The working voltage is the voltage used for the power supply for the load to work normally. Using a non-working voltage for power supply may easily cause load overload or overcurrent, or malfunction, undervoltage, etc. The working voltage can be regarded as the rated voltage of the load and the allowable vol...

specific Embodiment 2

[0047] According to the power supply system of specific embodiment 1, its control system includes:

[0048] The control unit includes an intelligent controller, the intelligent controller includes an MCU, a display, and a keyboard, and the display and the keyboard are respectively connected to the MCU;

[0049] The anti-stealing electricity unit includes a step-up meter 1 and a step-down meter 2. The step-up meter 1 and the step-down meter 2 are connected through a user cable 5. The step-down meter 2 includes a total meter and a step-down transformer connected in series. The step-up meter 1. A sub-meter and a step-up transformer connected in series; the turn ratios of the primary and secondary side coils of the step-up transformer and the step-down transformer are reciprocal; the step-down transformer is used to transform the mains 4 into a voltage lower than the working voltage of the load 3 The anti-theft voltage, the step-up transformer is used to boost the anti-theft volta...

specific Embodiment 3

[0057] According to the power supply system of embodiment 1 or the control system of embodiment 2, its anti-stealing method:

[0058] (1) Install the step-down meter 2 in the community, install the step-up meter 1 in the user's room, and connect the step-down meter 2 to the mains 4;

[0059] (2) Control the coil turns ratio of the step-down transformer connected to the circuit by adjusting the voltage regulating node; make the output voltage of the step-down transformer 110-160v;

[0060] (3) After connecting the step-down transformer to the user cable for 5 and 15 seconds, measure the fluctuation range of the output voltage of the step-down transformer;

[0061] (4) Adjust the coil turns ratio of the step-up transformer connected to the circuit part to be the reciprocal of the coil turns ratio of the step-down transformer connected to the circuit part;

[0062] (5) When it is measured that the fluctuation range of the output voltage of the step-down transformer is not greate...

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Abstract

The invention relates to a district anti-electricity stealing system, belonging to the power supply system field, and comprises reduction voltage ammeters, a house cable and a boost ammeter. The input terminals of the reduction voltage ammeters are in connection with commercial power; the output terminal of the boost ammeter is connected to the house cable; the input terminals of the reduction voltage ammeters are connected to the house cable, and the output terminals are used for supplying power for loads; the reduction voltage ammeters comprise a total ammeter and a reduction voltage transformer in series connection; the boost ammeter comprises a branch ammeter and a boost transformer in series connection; the input voltage of the reduction voltage ammeters is lower than the work voltage of the loads, and the output voltage is the rated voltage of the loads. The voltage before entering the ammeters can not be directly used by domestic appliances, and only after conversion by an anti-electricity stealing ammeter can the voltage directly act on the loads. The input terminal of the anti-electricity stealing ammeter employs the voltage lower than the work voltage of the loads, and can avoid equipment damage caused by ammeter short circuit, and cut the occurrence rate of short circuit simultaneous faults.

Description

technical field [0001] The invention relates to an anti-stealing electricity system for a community, belonging to the field of power supply systems. Background technique [0002] An electric energy meter is an instrument used to measure electric energy, also known as an electric meter, a fire meter, or a kilowatt-hour meter, and refers to an instrument for measuring various electrical quantities. Current meter in use. The current coil inside the meter is short-circuited on the lead wire outside the meter to achieve the cheating effect of using electricity without running characters or less characters. This method of stealing electricity is very simple, that is, use a small section of wire outside the meter to short-circuit the two connectors of the meter to achieve the purpose. This method does not destroy the lead seal, the case, does not need to be connected to the open wire, and is easy to camouflage and emergency destruction, so it is adopted by many users. This is a ...

Claims

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Application Information

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IPC IPC(8): G01R11/24
Inventor 肖勇
Owner CHENGDU 90 DEGREE IND PROD DESIGN CO LTD
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